Q: What are the prime factors of the number 131,585,961?

 A: 3, 13, 733, 4603

Why are those the prime factors of the number 131,585,961?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 131,585,961

131,585,961
Factor Arrows
343,861,987
Factor Arrows
133,373,999
Factor Arrows
7334,603

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

3, 13, 733, 4603

We can check our work by multiplying all of the prime factors together: 3 x 13 x 733 x 4,603 = 131,585,961

This can also be written as 31 x 131 x 7331 x 4,6031 = 131,585,961

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 131,585,961:


Ask a Question